add game&rawdata

gamedata/shaders/r3/fluid_advect_bfecc.ps

@@ -0,0 +1,30 @@
+#include "fluid_common.h"
+
+//////////////////////////////////////////////////////////////////////////////////////////
+//	Pixel
+float4 main( p_fluidsim input ) : SV_Target
+{
+    if( IsNonEmptyCell(input.texcoords.xyz) )
+        return 0;
+
+    float3 npos = GetAdvectedPosTexCoords(input);
+
+    float4 r;
+    float3 diff = abs( floatVolumeDim - input.cell0 );
+
+    // Must use regular semi-Lagrangian advection instead of BFECC at the volume boundaries
+    if( (diff.x > (floatVolumeDim.x-4)) || (diff.y > (floatVolumeDim.y-4)) || (diff.z > (floatVolumeDim.z-4)) )
+    {
+       r = Texture_color.SampleLevel( samLinear, npos, 0);
+    }
+    else
+    {
+        // Texture_color contains \phi^n; Texture_tempscalar contains \bar{\phi}
+        //  (i.e.: the result of 1 forward advection step, followed by a backwards advection step)
+        r = 1.5f * Texture_color.SampleLevel( samLinear, npos, 0)
+            - 0.5f * Texture_tempscalar.SampleLevel( samLinear, npos, 0);
+    }
+
+    r = saturate(r);
+    return r*modulate;
+}